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1. Sugar doesn't make you hyperactive

Don't let your kids know this but sugar doesn't actually make you hyperactive.

According to science , there's no such thing as a "sugar high" and they found that the connection between hyperactivity and sugar is surprisingly slim.

2. You don't have to wait before swimming

Science has come to the rescue again and found that you actually don't have to wait for your food to digest before swimming.

Experts say that the idea is just an old wives tale that needs to be laid to rest.

Dr. Roshini Rajapaksa , a gastroenterologist at the New York University School of Medicine, said that while swimming strenuously on a full stomach could conceivably lead to cramps, for most recreational swimmers the chances are small.

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That said, there are many reasons why you shouldn't crack your knuckles.

Chronic knuckle-crackers were more likely to have swollen hands and reduced grip strength. And there are at least two published reports of injuries suffered while people were trying to crack their knuckles.

5. Watching TV close to the screen won't make you blind

Sure, it'll irritate your eyes and make them drier faster but watching TV up close won't make you blind.

There has been no concise study that found a connection to watching TV closely and losing your sight.

According to Scientific American, this myth is here today because back in the 1960s General Electric sold some new-fangled color TV sets that emitted excessive amounts of radiation—as much as 100,000 times more than federal health officials considered safe.

They quickly recalled and repaired the faulty TVs, but the stigma lingers to this day.

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10. Reading in the dark won't make you go blind

While you shouldn't read in the dark because it can cause headaches or sore eyes, it won't have any permanent damage.

According to most ophthalmologists, while reading in the dark might strain your eyes and give you a headache, the notion that it can cause lasting damage is wrong.

Most people can expect to experience some decline in their vision as they age, and genetic research shows that it is family history above all else that determines to what extent your vision will weaken.

That said, some researchers argue that putting too much strain on your eyes as a child or young adult, like the kind caused by reading in the dark, or simply reading for prolonged periods in general, might contribute to the decline of your eyesight later in life.